baber/WOPTO huggingface dataset:
Patent GB-360528-A (GB)
Title: Improvements in or relating to furnaces
IPC: F23D14/00
Filed: 1930-08-21
Abstract: 360,528. Gaseous-fuel furnaces. ATKINSON, J. S., 47, Victoria Street, London. Aug. 21, 1930, No. 25011. [Class 51 (i).] A gas-fired furnace for heating billets, forgings, glass, &c. is provided with a gas supply chamber 3, Fig. 1, separated by a partition wall 4 from a secondary air supply chamber 2 supplied with. heated air from a recuperator through a duct 8. Primary air under pressure is supplied through one or more nozzles 13 so as to induce the heated secondary air in the chamber 2 to pass through nozzles 9, Figs. 1 and 2, arranged in the partition wall 4, from which nozzles the mixed air enters apertures 6 in the wall 5 and carries with it gas from the chamber 3, the mixture of air and gas entering the combustion chamber. The nozzle 9 is provided with a ring 11 having holes 12 from which steam or air supplied to the ring may be directed into the apertures 6 for removing soot. When the nozzle 9 is not employed, the ring 11 may be arranged to surround an aperture in the partition wall or in other convenient position. The aperture in the partition wall when the nozzle 9 is dispensed with and in the wall 5 may be of venturi form. A second row of apertures 15 may be arranged beneath the apertures 6 and inclined downwardly for supplying a blanket of reducing gas over the charge in the combustion chamber. Nozzles 16, Figs. 1 and 4, passing through the partition wall deliver air to the apertures 15 and induce a supply of gas from the chamber 3. The nozzles 16 are provided with an inner adjustable tubular nozzle 18 for varying the gas mixture.
Patent GB-172104-A (GB)
Title: Improved electric water heater
IPC: H05B6/02
Filed: 1920-08-30
Abstract: 172,104. Frost, R. J. Aug. 30, 1920. Generating b y electricity. - An electric water-heater or steam generator of the type in which water pipes, through which the water to be heated passes, form the short-circuited secondary circuit of a transformer has the conductors of the primary circuit protected against destructive heating effects by water - circulating pipes. In the water heater shown, which is surrounded by a water-jacket 1, the water to be heated enters the coiled pipe 7 surrounding the transformer core 8 by the inlet 12 and leaves by the outlet 10. A metallic bridge 9 short-circuits the end of the coil. The primary winding 4, 5 is protected by water circulating pipes 6. Water may be supplied to the inlet pipe from the jacket 1. In a modification the water passes through annular connected containers which divide the water into thin streams, thus increasing the heating effect,
Patent GB-1509926-A (GB)
Title: Warp knitting machine
IPC: D04B23/08
Filed: 1975-06-11
Abstract: 1509926 Knitting-machines LIBA MASCHINENFABRIK GmbH 11 June 1975 [23 July 1974] 25106/75 Heading D1C A warp knitting machine for making loopedpile fabric comprises a row of needles 1. two rows of thread guides 7, 8 for feeding warp thread 9 and pile yarn 10 respectively, trick plates 3 with knock over edges, means for feeding parallel weft filler threads 5 extending over the full width of the machine to the backs (i.e. the right, as shown) of the needles at the level of the top of the trick plates 3. pile sinkers 11 for drawing pile loops 13 in yarn 10 and extending over and round the knock over edges of plates 3, a plurality of transport elements 6 for transporting the threads 5 individually to the front of the needles, the transport elements being able to pass between the needles and trick plates, and means 16-28 for moving the transport elements along a rectangular path having horizontal and vertical sections. The sinkers 11 may be displaced in the weft direction to allow production of tricot fabric.
Patent GB-463177-A (GB)
Title: Flexible wooden sole
IPC: A43B13/08
Filed: 1936-09-16
Abstract: 463,177. Flexible wooden soles for footwear. FERET, I. Sept. 16, 1936, No. 25211. Convention date, Sept. 27, 1935. [Class 17 (ii)] A flexible wooden sole comprises a number of strips a of wood of rabbeted cross-section, as shown, to prevent material passing therethrough, connected together on their upper face by staples c to a strip b of leather or like material dovetailed into and flush with the upper face of the strips a, and on their tmderside by a peripheral strip of rubber d to which each of the strips a is connected near its ends.
Patent GB-1502205-A (GB)
Title: Pressuresensing arrangements
IPC: G11B23/50
Filed: 1976-06-18
Abstract: 1502205 Pressure indicators SIEMENS AG 18 June 1976 [20 June 1975] 25Z55/76 Heading G1L A pressure sensor comprises a piston 2 which normally rests on the base 9 of a housing 1 and optical means for detecting the position of the piston; wherein when the pressure P exceeds a preset value it moves the piston, the force on the piston then increasing due to the entire face of the piston being exposed to the pressure P. The position of the piston is detected by a light sensor 12 illuminated by an LED 10 only when the piston is up. The housing is tapered so that as the piston rises less air can escape between the piston and housing and the force on the piston again increases. This prevents hovering due to slight fluctuations in pressure P. The sensor detects a few millibars of pressure in air cooled magnetic disc stores.
Patent GB-1313958-A (GB)
Title: Piston estrusion press
IPC: B30B15/30
Filed: 1971-04-19
Abstract: 1313958 Extrusion press WERNER & PFLEIDERER 19 April 1971 [2 April 1970] 25269/71 Heading B5A A material is extruded free of occluded gases by applying a vacuum throughout apparatus comprising a cylinder 3, from an orifice 11 of which the material is extruded by an hydraulically actuated piston 5, and a double bladed mixer 2 which intermittently discharges to the cylinder 3, via a feeder screw 1, the vacuum being applied after sealing the loading opening of the mixer 2, and sealing the orifice 11 by a rubber ball 12. The casing of the screw 1 may comprise part of the mixer housing or, as shown, may comprise a trunnion 9, of a pair 8, 9 about which the cylinder 3 may rotate, to and fro, to agitate the material therein whilst maintaining the vacuum prior to extrusion in a horizontal direction of a downwardly inclined direction. The material is extruded on to a conveyer belt whereon it is transversely cut by a rotary cutter which, together with the belt, may be swung from a horizontal alignment with the cylinder 3 to an inclination either corresponding to, or differing from, a downwardly inclined extrusion direction of the cylinder 3. The screw 1 may remain stationary during mixing by the mixer 2, or may enhance the mixing effect by rotating in the opposite direction to that for discharge to the cylinder 3. The screw 1 may be hydraulically retractable from the trunnion 9, so that the mixer 2, including the screw 1, is pivotable about axis 18, away from the cylinder 3 to location 19 to facilitate clearing.
Patent GB-927449-A (GB)
Title: A method of manufacturing oxide magnetic materials
IPC: C04B35/26
Filed: 1961-07-12
Abstract: 927,449. Magnetic compositions. NIPPON ELECTRIC CO. Ltd. July 12, 1961 [Aug. 25, 1960], No. 25278/61. Class 38 (2). A ferrite comprises a basic MnZn composition which includes small quantities of at least two of the oxides of V, In and Si. The quantities of the additives lie in the ranges 0.05- 2.8 % mol. In 2 O 3  ; 0.00-0.17 % mol. V 2 O 5 ; 0.005-0.11 % mol. SiO 2 . The basic MnZn composition is given by 52.5-53 % mol. Fe 2 O 3 ; 25-30 % mol. MnO 17-22.5 % mol. ZnO. In manufacture the oxides of the additives (or oxide-yielding salts) are added to the oxides of Fe, Mn and Zn, and the mixture is ground, calcined, compressed and sintered at 1280 C. for 4 hours in nitrogen.
Patent GB-208591-A (GB)
Title: Improvements in or relating to variable speed hydraulic transmission apparatus
IPC: F16H39/42
Filed: 1922-09-19
Abstract: 208,591. Ingoldby, M. K. Sept. 19, 1922. Cam-actuated pumps ; revolving- cylinder pumps. - In variable speed hydraulic transmission apparatus the pistons a<3> of a pump contact with plungers a<4> guided in a member A<4> keyed to the shaft A, each plunger having a ball end a<5> engaging a slipper A<5> carried by the swash plate a<1>. The cylinder motor may have a slight rocking movement so as to adapt itself automatically to the surface of the valve plate D.
Patent GB-733339-A (GB)
Title: Process for the manufacture of metallo-ceramic agglomerates by thermic reaction
IPC: C22C1/05
Filed: 1951-10-30
Abstract: Metallo-ceramic agglomerates, including such as contain no free metal, are made by temporarily initially igniting an exothermic powder comprising one or more metals with one or more elements or compounds capable of entering into exothermic reaction with the metal, and so controlling the reaction that a homogeneous agglomerate is produced.  A homogeneous agglomerate is defined as one which consists wholly of a compound not containing free metal, or one consisting of a non-metallic compound containing uniformly distributed metal particles.  The powder may include carbon, reaction-retarding agents, e.g. powdered agglomerate from a previous exothermic reaction, and catalists, e.g. traces of iodine, serving to actuate one of the reactants, and the proportions may vary throughout the powder.  If 10 per cent of alumina be added to the usual aluminium-iron-oxide mixture, the reaction is slowed down and separation of slag is prevented.  A mixture of aluminium and chromium-oxide may be used for making gas-turbine blades, or zirconium with oxygen to form articles resistant to acids and alkalies.  The process is described in Group XXII.ALSO:Metallo-ceramic agglomerates, including such as contain no free metal, are made by temporarily initially igniting an exothermic powder comprising one or more metals with one or more elements or compounds capable of entering into exothermic reaction with the metal, and so controlling the reaction that a homogeneous agglomerate is produced.  A homogeneous agglomerate is defined as one which consists wholly of a compound not containing free metal, or one consisting of a non-metallic compound containing uniformly distributed metal particles.  The powder may include carbon, reaction-retarding agents, e.g. powdered agglomerates from previous exothermic reaction, and catalysts, e.g. traces of iodine, serving to activate one of the reactants, and the proportions may vary throughout the powder.  If 10 per cent of alumina be added to the usual aluminium-iron-oxide mixture, the reaction is slowed down and separation of slag is prevented.  A mixture of aluminium and chromium oxide may be used for making gas-turbine blades, or zirconium with oxygen to form articles resistant to acids and alkalies.
Patent GB-586906-A (GB)
Title: Improvements in or relating to optical systems
IPC: G02B23/00
Filed: 1944-12-18
Abstract: 586,906. Optical apparatus. TAYLOR, TAYLOR, & HOBSON, Ltd., WARMISHAM, A., and CLIFFORD, T. W. Dec. 18, 1944, No. 25408. [Class 97 (i)] In telescopes, binoculars, or like optical instruments, the image-erecting system comprises four separate plane mirrors constituting two mirror pairs whose rooves are mutually perpendicular and held by spring means in seatings in a rigid framework. As shown in Figs. 2, 4, 5 a plate B having apertures B<1>, B<2>, B<3> is fixed between the objective casing A<1> and eye-piece casing A and has on opposite sides grooves B<6>, B<7> holding frames C, C<1>, each carrying two mirrors held at rightangles. Each frame is in the shape of a rightangled prism with its hypotenuse open and carries studs C<2>, C<3> against which the mirrors D<3>, D<4> are held by springs C <5> C<6>. The frame C<1> bearing the mirrors D<3>, D<4> is held in the groove B<7> by staking over one edge of the groove, by a spring, by engagement of a tongue on the frame with a recess in one side of the groove, or by cement. The frame C bearing the mirrors D<1>, D<2> (not shown), is similarly fixed in the groove B<6>. The plate B carries pillars B<4>, B<5> bearing springs B<8> to hold the frames in position. Light entering the objective passes through aperture B<2>, is reflected by mirrors D<1>, D<2> (not shown), back through aperture B3 and thence reflected by mirrors D', D<4> through aperture B<1> to the eye-pieces. In a modification the plate B comprises a cross having grooves to hold' the frames C, C<1> and pillars B<4>B<5>, as before ; alternately, the frames C, C<1> may be integral and the mirrors held by spring means against suitable studs on the outside of the frames over apertures therein. In the arrangement shown in Figs. 26, 28 the first and fourth mirrors K<1>, K<4> are mounted edge-to-edge with their planes at right-angles, light from the objective being reflected by the mirrors K<1>, K<2>, K<3>, K<4> in succession with the eye-piece. The mount for mirrors K\ K<4> comprises a plate M, bearing an X-shaped bracket M\ M<2>, Fig. 26, having grooves into which the edges of the mirrors are pressed by spring clips M<3>, M<4> on pillars M<5>, M<6>, Fig. 28. Mirrors K<2>, K<3> are held in grooves in a plate L by springs L<3>, L<4>. The plates L, M may be integral. Alternatively all four mirrors may be mounted on the outside of a single frame or mirrors K<1>, K<2> may be mounted on one frame and K<3>, K<4> on another, the two frames being separately secured to the body. In a further arrangement, one or both of a pair of mirrors are arranged at an angle to the incident beam other than 45 degrees so that the optical axis of objective and eye-piece are not parallel. The mirrors may comprise rear surface reflectors, such as glass, the front surface being coated with a reflection-reducing film of a thickness suitable for angles of incidence of 45 degrees, or about 85 per cent of the thickness for normal incidence.
Patent GB-1150427-A (GB)
Title: Improvements in or relating to Assemblages of Printed Material
Inventor: CLEARY GERALD VERNON JR
IPC: B42D7/00
Filed: 1966-06-08
Abstract: 1,150,427. Signature gathering; feeding sheets; attaching articles to cards. G. V. CLEARY. 8 June, 1966, No. 25463/66. Headings B8C and B8R. [Also in Divisions B6 and G5] A single sheet insert 11 of heavier stock than newsprint is placed between inner and outer sections 17, 13 of a newspaper, the insert comprising a rectangular panel 25 with a flap 33 foldably attached thereto and carrying an advertising article such as a postcard, coupon, reply envelope, samples &c. In one form, Fig. 1, the flap 33 has a coupon or return postcard 39 thereon defined by perforated lines 41, and advertising matter is printed on the panel 25. In other embodiments, an envelope may be attached to the panel 25 by means of an extension of the closing flap of the envelope (Fig. 18), or perforated lines on the flap and panel may outline an envelope blank (Figs. 19, 20) which has lines of adhesive for completing the envelope when the blank is detached. Perforation lines on the panel may outline a letter card (Figs. 21-23). Sample tubes e.g. of toothpaste, may be enclosed in an envelope which is secured to the panel by stapling (Figs. 15-16). Samples of material for making beverages, or of medicinal tablets, &c., or of viscous liquids such as catsup may be placed in compartments of a package 73, Fig. 10, formed by bonding two flexible sheets along their edges and along lines 75. The package may be secured to the panel by glue at its corners or by providing it with a coating of a thermoplastic material which is bonded to the panel. As shown, the package 73 is provided with an edge part 78 which is attached to the panel as follows:- Fastening sheets together by punching.-The edge part 79 and panel 25C, Fig. 12, are pierced by a sharp pointed triangular-section tool 81 which causes small flaps 83 to be punched out. Pressure is subsequently applied to crease the flaps and secure the parts 79, 25C. Signature gathering; feeding sheets.-After the outer folded section 13, Fig. 2, of a newspaper has been fed from a pile into a V-shaped carrier 57, Fig. 6, of a newspaper stuffing machine, the carrier moves adjacent to a pile of inserts 25, the bottom one of which is fed by suction separators 43, Fig. 5, and grippers 51 on a rotating drum, into the carrier. During subsequent movements of the carrier 57, inner newspaper sections are deposited therein from further piles. The suction separators engage the flap 33 of the insert so that there are two thicknesses of material between the separators and the next insert thus preventing the suction acting on the next insert and withdrawing it together with the lowest insert.
Patent GB-847389-A (GB)
Title: Improvements in the withdrawal of reaction heat
IPC: C08F10/00
Filed: 1957-08-13
Abstract: Exothermic polymerization reactions are conducted in the presence of a solution of a gas in a solvent in which it dissolves with evolution of heat, after said solution has been cooled, and p  allowing said gas to escape by decompression during the course of the reaction so that the gas withdraws the reaction heat.  The gas serving as a heat carrier may be an active participant in the polymerization thus in the polymerization of a gaseous olefin the olefin (e.g. ethylene) may be the heat carrier.  The process which may be continuous may especially be employed in the polymerization of gaseous monomers e.g. propylene, isobutylene, vinyl chloride or fluorinated ethylenes and may be used for both the high and low pressure polymerization of ethylene, an example of each being given.  Catalysts specified for the polymerization of ethylene are alpha, alpha'- azobisisobutyronitrile, peroxides, e.g. benzoyl peroxide, and normal amyl sodium with titanium tetrachloride and diluents specified are cyclohexane and benzene.
Patent GB-356455-A (GB)
Title: Improvements in or relating to therapeutic apparatus for medical or cosmetic treatment
IPC: A61H15/02
Filed: 1930-08-27
Abstract: 356,455. Massage and heat treatment apparatus. THENEN, J., 1, Ferstelgasse, Vienna. Aug. 27, 1930, No. 25570. [Class 81 (ii).] A massage roller 6, having a smooth, grooved or other surface, is detachably connected to a casing 1, preferably of insulating material, containing one or more electric heating coils 4 adapted to maintain the roller in heated condition during treatment, or, when the roller is removed, to apply radiant heat to the body. The roller mounting comprises bearing brackets 7 extending into cylindrical housings 9 in the casing 1 and retained therein by the engagement, with annular recesses 13 on the brackets, of pins 11 carried on blade springs 12. Coil springs 10 are positioned above the members 7 and the recesses 13 are sufficiently wide to permit a limited. resilient movement of the roller during treatment. The coils 4 are wound on insulating cylinders 3 and are enclosed in inner casing 2, of enamelled metal or of insulating material, attached to the casing 1 by strips 5. Current is supplied through leads passing through a laterally extending handle 16 carrying a switch. Ventilation holes 15 are provided in the casing 1.
Patent GB-649685-A (GB)
Title: Manufacture of oxy-compounds of the benzoxanthene series
IPC: C07D311/80
Filed: 1948-10-01
Abstract: 7 - Hydroxy - 1 : 9 - benzoxanthrene and substitution products thereof are manufactured by the action of agents capable of eliminating hydrogen halide on the compounds obtainable by reaction of a diazotized 1-halogen- (e.g. chloro- or bromo-) 8-aminonaphthalene (which may contain further substituents which do not affect the reaction, e.g. further halogen atoms or alkyl or alkoxy groups) with a p-quinone (preferably containing at most two condensed rings) followed by reduction (e.g. with iron and hydrochloric acid or with sodium hydrosulphite).  The elimination of hydrogen halide is preferably effected with a strong alkali, such as an alkali metal (especially sodium or potassium) hydroxide, which is advantageously used in the form of melts poor in water at a temperature above 100 DEG  C. (e.g. 150-250 DEG  C.), though in some cases heating with a concentrated solution suffices.  Examples describe the production of 7-hydroxy-1 : 9-benzoxanthene and its 2-chloro and 4-methoxy derivatives from the reaction products of benzoquinone with diazotized 1-chloro-8-aminonaphthalene, 5 : 8-dichloro-1-aminonaphthalene and 1 - chloro - 8 - amino - 2 - methoxynaphthalene respectively. Other quinones specified are a -naphthoquinone and monochlorobenzoquinone.
Patent GB-1181477-A (GB)
Title: Cross-Linked Derivatives of Macromolecular Alpha-1,4-Glucosides.
IPC: C08B33/00
Filed: 1968-05-29
Abstract: 1,181,477. Cross-linked starch derivatives. VAESSEN-SCHOEMAKER HOLDING N.V. 29 May, 1968 [30 May, 1967], No. 25714/68. Heading C3U. Polysaccharides composed predominantly of alpha-1,4-glucopyranose units, e.g. starches, amylose or amylopectin, are reacted under alkaline conditions with both a monohalogen fatty acid and a dihalogen fatty acid, or their alkali metal salts, in the presence of water and an organic solvent. Mono- and di-chloroacetic and -propionic acids and their Na salts are specified. The solvent may be acetone, MeOH, EtOH, DMF, toluene, benzene, hexane or, advantageously, dioxolane. The water present may be that inherently present in the polysaccharide. The two acids may be reacted simultaneously or in separate stages. In one example, corn starch is treated with HCl, then with Na mono- and dichloroacetates, followed by HCl. In a modification, an already existing alkali salt of the carboxymethyl ether of the polysaccharide is reacted under the above conditions with the dihalogen acid only. The products are stated to be cross-linked and to contain ester groups.
Patent GB-502573-A (GB)
Title: Improvements in or relating to electrical transmission systems
IPC: H03F1/36
Filed: 1937-09-23
Abstract: 502,573. Valve amplifying systems. STIELTJES, F. H. Sept. 23, 1937, No. 25872. Convention date, Sept. 24, 1936. [Class 40 (v)] An electrical transmission system comprises two or more forwardly acting amplifier paths and a single negative feed-back path between the common output and input circuits, whereby the overall amplifier characteristic is prevented from varying substantially in the event of breakdown of one of the amplifier paths. Fig. 1 shows a normal type of line amplifier in which the output voltage across resistance 1 is fed back in phase opposition to the input. The forwardly acting path (rectangle B) is duplicated as at B1, B2, Fig. 2, one being switched in on failure of the other by a system of inert and energized relays actuating switches SW1, SW2, SW3. Alternatively, the input and output circuits of the paths may be permanently in parallel, Fig. 2 (not shown), or in series, Fig. 6 (not shown), or in series-parallel. Voltage feed-back may be employed instead of the negative current feed-back shown in Fig. 1, Fig. 5 (not shown), and the amplifier paths may be constituted by modulator units, Fig. 4 (not shown). Signals may be provided to show the number of amplifier paths in use.